Editorial Editorial Editorial Hilton Justino da Silva; Giédre Berretin-Felix http://dx.doi.org/10.1590/1982-02162017194ed1 Revista CEFAC, vol.19, n4, p.441-442, 2017 PDF PDF SciELO Downloads: 0 Views: 287 6a17a65ea9539569727e6a14 cefac Articles